Enteric Nervous SystemNeuronsMyenteric PlexusNeurons, AfferentSubmucous PlexusNitrergic NeuronsGastrointestinal MotilityMotor NeuronsHirschsprung DiseaseNeurogliaProto-Oncogene Proteins c-retDigestive SystemGlial Cell Line-Derived Neurotrophic Factor ReceptorsCalbindin 2Neural CrestGastrointestinal TractColonGuinea PigsIleumGlial Cell Line-Derived Neurotrophic FactorAction PotentialsGlucagon-Like Peptide 2Purinergic P2X Receptor AgonistsAutonomic DenervationNerve Tissue ProteinsUbiquitin ThiolesteraseImmunohistochemistryNeurturinGangliaSensory Receptor CellsNerve Growth FactorsTetrodotoxinCells, CulturedIntestinesIntestine, SmallSerotoninElectric StimulationEndothelin-3Tyrosine 3-MonooxygenaseNADH Tetrazolium ReductaseNitric Oxide Synthase Type IS100 Calcium Binding Protein GSynaptic TransmissionDopaminergic NeuronsCholine O-AcetyltransferaseCell CountVasoactive Intestinal PeptideHu Paraneoplastic Encephalomyelitis AntigensNeurogenesisRats, Sprague-DawleyGABAergic NeuronsReceptor, Nerve Growth FactorPatch-Clamp TechniquesIntestinal Pseudo-ObstructionElectrophysiologyMice, TransgenicHippocampusHexamethoniumSynapsesVagus NerveMuscle, SmoothGanglia, SpinalAxonsSubstance POrgan Culture TechniquesMice, KnockoutDendritesMice, Inbred C57BLOlfactory Receptor NeuronsGene Expression Regulation, DevelopmentalGastrointestinal TransitCell DifferentiationReceptor Protein-Tyrosine KinasesCholinergic NeuronsSpinal CordCerebral CortexPeristalsisgamma-Aminobutyric AcidIn Situ HybridizationMembrane PotentialsTime FactorsNeural InhibitionNeurons, EfferentMotor Neuron DiseaseModels, NeurologicalGlial Fibrillary Acidic ProteinCalciumAnimals, NewbornPyramidal CellsAcetylcholineSignal TransductionCoturnixMedulla OblongataRNA, MessengerCell DeathDopamineExcitatory Postsynaptic PotentialsInterneuronsMesencephalonZebrafish